diff --git a/.github/workflows/check_skip_ci.yml b/.github/workflows/check_skip_ci.yml
index 518f7219..0ca3822e 100644
--- a/.github/workflows/check_skip_ci.yml
+++ b/.github/workflows/check_skip_ci.yml
@@ -54,50 +54,56 @@ jobs:
 
       - name: scan label, description, and comments
         id: check
-        if: github.event_name == 'pull_request'
         uses: actions/github-script@v7
         with:
           script: |
-            const trusted = ['OWNER', 'MEMBER', 'COLLABORATOR'];
-            // The control string is honored only when it is alone on a line
-            // by itself, so that prose mentioning it does not accidentally
-            // skip CI.
-            const control = /^\[skip-ci\]$/i;
-            const hasControlLine = text =>
-              (text || '').split(/\r?\n/)
-                .some(line => control.test(line.trim()));
-            const pr = context.payload.pull_request;
-
-            // 1. The skip-ci label, set by a repository member.
-            if (pr.labels.some(label => label.name === 'skip-ci')) {
-              core.notice('CI skipped: the "skip-ci" label is present.');
-              core.setOutput('skip', 'true');
-              return;
+            async function hasSkipLabelOnPr(prNumber) {
+              const { data: pr } = await github.rest.pulls.get({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                pull_number: prNumber,
+              });
+
+              if (pr.labels && pr.labels.some(label => label.name === 'skip-ci')) {
+                core.notice(`CI skipped: the "skip-ci" label is present on PR #${pr.number}.`);
+                return true;
+              }
+              return false;
             }
 
-            // 2. The control string in the pull request description.
-            if (trusted.includes(pr.author_association) &&
-                hasControlLine(pr.body)) {
-              core.notice('CI skipped: control string in the description.');
-              core.setOutput('skip', 'true');
+            if (github.event_name === 'pull_request') {
+              const pr = context.payload.pull_request;
+              if (!pr) {
+                core.setOutput('skip', 'false');
+                return;
+              }
+              const shouldSkip = await hasSkipLabelOnPr(pr.number);
+              core.setOutput('skip', shouldSkip ? 'true' : 'false');
               return;
             }
 
-            // 3. The control string in a comment from a member.
-            const comments = await github.paginate(
-              github.rest.issues.listComments,
-              {
+            else if (github.event_name === 'push') {
+              const sha = context.sha || context.payload.after;
+              if (!sha) {
+                core.setOutput('skip', 'false');
+                return;
+              }
+
+              const assoc = await github.rest.repos.listPullRequestsAssociatedWithCommit({
                 owner: context.repo.owner,
                 repo: context.repo.repo,
-                issue_number: pr.number,
-                per_page: 100,
+                commit_sha: sha,
               });
-            const hit = comments.find(
-              comment => trusted.includes(comment.author_association) &&
-                         hasControlLine(comment.body));
-            if (hit) {
-              core.notice('CI skipped: control string in a comment.');
-              core.setOutput('skip', 'true');
+
+              const prs = assoc.data || [];
+              for (const p of prs) {
+                if (await hasSkipLabelOnPr(p.number)) {
+                  core.setOutput('skip', 'true');
+                  return;
+                }
+              }
+
+              core.setOutput('skip', 'false');
               return;
             }
 
diff --git a/.github/workflows/profiling.yml b/.github/workflows/profiling.yml
index 4d38364c..88540103 100644
--- a/.github/workflows/profiling.yml
+++ b/.github/workflows/profiling.yml
@@ -1,17 +1,19 @@
 name: profiling
 
 on:
-  push:
-  pull_request:
   schedule:
     - cron: '34 17 * * *'
+  workflow_dispatch:
+  push:
+  pull_request:
 
 jobs:
   profile:
 
-    # Run profiling only on schedule or when MMGH_FORCE_PROFILE is set to 'enable'
-    # You can refer to https://docs.github.com/en/actions/how-tos/write-workflows/choose-what-workflows-do/use-variables to set MMGH_FORCE_PROFILE in the fork repository settings for testing purposes.
-    if: ${{ (github.event_name == 'schedule' && vars.MMGH_NIGHTLY == 'enable') || vars.MMGH_FORCE_PROFILE == 'enable' }}
+    # Run profiling on schedule or when MMGH_FORCE_PROFILE is set to 'enable'.
+    # MMGH_FORCE_PROFILE can force profiling for push and pull_request events.
+    # See: https://docs.github.com/en/actions/learn-github-actions/variables#organization-and-repository-variables
+    if: ${{ vars.MMGH_NIGHTLY == 'enable' || vars.MMGH_FORCE_PROFILE == 'enable' }}
 
     name: profile_${{ matrix.os }}